<p>
  <strong>Invoice item type:</strong><%= invoice_detail.invoice_item_type.label %></br>
  <strong>Fee:</strong><%= invoice_detail.fee %></br>
  <strong>Discount:</strong><%= invoice_detail.discount %></br>

<%= link_to 'Edit', edit_invoice_invoice_detail_path(:id => invoice_detail, :invoice_id => params[:id]) %> |
<%= link_to 'Destroy', invoice_invoice_detail_path(:id => invoice_detail, :invoice_id => params[:id]), method: :delete, data: { confirm: 'Are you sure?' }%>
</p>